Powerbank case



FIG. 1 is a front perspective view of a powerbank case according to a first embodiment;

FIG. 2 is a rear perspective view of the powerbank case of FIG. 1 ;

FIG. 3 is a left side view of the powerbank case of FIG. 1 ;

FIG. 4 is a right side view of the powerbank case of FIG. 1 ;

FIG. 5 is a top view of the powerbank case of FIG. 1 ;

FIG. 6 is a bottom view of the powerbank case of FIG. 1 ;

FIG. 7 is a front view of the powerbank case of FIG. 1 ; and,

FIG. 8 is a rear view of the powerbank case of FIG. 1 .

Any broken lines are for the purpose of illustrating portions of the powerbank case that form no part of the claimed design. 

CLAIM The ornamental design for a powerbank case, as shown and described. 